Sexual behavior in aged men and women. I. Observations on 254 community volunteers.
D000328:Adult; D000367:Age Factors; D000368:Aged; D003075:Coitus; D003643:Death; D007172:Erectile Dysfunction; D005260:Female; D006801:Humans; D008297:Male; D008393:Marriage; D008875:Middle Aged; D012725:Sexual Behavior